The Journal of Agricultural Science · 1912 · 478 citations · 0 references
AgricultureEarth SciencesSoil SciencesSoil PhysicsSoil ScienceSoil-water RelationsSoil ColloidsSoil Hydraulic PropertiesSoil PermeabilitySoil Physical PropertiesSoil TextureWater ContentAir Permeability Of SoilIntrinsic PermeabilitySoil Colloid ChemistrySoil Colloid Interactions
The study aimed to determine whether intrinsic permeability values are identical for pure sand and other uniform, non‑colloidal soils. Intrinsic permeability measured with water is lower than with air, and the ratio depends on colloidal content. This work is part of a series, referencing Part I, volume IV.
§ 1. In Part I. (vol. IV. pp. 1—24) it was shown that the intrinsic permeability of a soil when measured with water was less than when measured with air as the experimental fluid, and that the ratio of the two values varied with the amount of colloidal matter present. It was desirable to determine accurately whether the values would be identical for soils composed of pure sand or other uniform and non-colloidal particles.